Java tutorial
/* * JBoss Admin * Copyright 2013, Christos Vasilakis, and individual contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.cvasilak.jboss.mobile.app.fragments; import android.graphics.Color; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarActivity; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.TextView; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import org.cvasilak.jboss.mobile.app.JBossAdminApplication; import org.cvasilak.jboss.mobile.app.R; import org.cvasilak.jboss.mobile.app.fragments.dialogs.ErrorDialogFragment; import org.cvasilak.jboss.mobile.app.fragments.dialogs.ProgressDialogFragment; import org.cvasilak.jboss.mobile.app.model.Metric; import org.cvasilak.jboss.mobile.app.net.Callback; import org.cvasilak.jboss.mobile.app.net.JBossOperationsManager.DataSourceType; import org.cvasilak.jboss.mobile.app.util.commonsware.MergeAdapter; import org.cvasilak.jboss.mobile.app.util.listview.adapters.MetricsAdapter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class DataSourceMetricsViewFragment extends ListFragment { private static final String TAG = DataSourceMetricsViewFragment.class.getSimpleName(); private JBossAdminApplication application; private List<Metric> poolMetrics; private List<Metric> prepStatementMetrics; private String dsName; private DataSourceType dsType; public static DataSourceMetricsViewFragment newInstance(String name, DataSourceType type) { DataSourceMetricsViewFragment f = new DataSourceMetricsViewFragment(); Bundle args = new Bundle(); args.putString("dsName", name); args.putString("dsType", type.name()); f.setArguments(args); return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); this.dsName = getArguments().getString("dsName"); this.dsType = DataSourceType.valueOf(getArguments().getString("dsType")); application = (JBossAdminApplication) getActivity().getApplication(); poolMetrics = new ArrayList<Metric>(); poolMetrics.add(new Metric("Available", "AvailableCount")); poolMetrics.add(new Metric("Active Count", "ActiveCount")); poolMetrics.add(new Metric("Max Used", "MaxUsedCount")); prepStatementMetrics = new ArrayList<Metric>(); prepStatementMetrics.add(new Metric("Current Size", "PreparedStatementCacheCurrentSize")); prepStatementMetrics.add(new Metric("Hit Count", "PreparedStatementCacheHitCount")); prepStatementMetrics.add(new Metric("Miss Used", "PreparedStatementCacheMissCount")); setHasOptionsMenu(true); refresh(); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ActionBar bar = ((ActionBarActivity) getActivity()).getSupportActionBar(); bar.setTitle(dsName); MergeAdapter adapter = new MergeAdapter(); TextView sectionHeader; // Section: Pool Usage sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("Pool Usage"); adapter.addView(sectionHeader); MetricsAdapter poolMetricsAdapter = new MetricsAdapter(getActivity(), poolMetrics); adapter.addAdapter(poolMetricsAdapter); // Section: Prepared Statement Pool Usage sectionHeader = new TextView(getActivity()); sectionHeader.setBackgroundColor(Color.DKGRAY); sectionHeader.setPadding(15, 10, 0, 10); sectionHeader.setText("Prepared Statement Pool Usage"); adapter.addView(sectionHeader); MetricsAdapter prepStatementMetricsAdapter = new MetricsAdapter(getActivity(), prepStatementMetrics); adapter.addAdapter(prepStatementMetricsAdapter); setListAdapter(adapter); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_refresh, menu); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.refresh) { refresh(); return (true); } return (super.onOptionsItemSelected(item)); } public void refresh() { ProgressDialogFragment.showDialog(getActivity(), R.string.queryingServer); application.getOperationsManager().fetchDataSourceMetrics(this.dsName, this.dsType, new Callback() { @Override public void onSuccess(JsonElement reply) { ProgressDialogFragment.dismissDialog(getActivity()); JsonObject jsonObj = reply.getAsJsonObject(); Map<String, String> info = new HashMap<String, String>(); JsonObject jsonPool = jsonObj.getAsJsonObject("step-1").getAsJsonObject("result"); int availCount = jsonPool.getAsJsonPrimitive("AvailableCount").getAsInt(); int activeCount = jsonPool.getAsJsonPrimitive("ActiveCount").getAsInt(); int maxUsedCount = jsonPool.getAsJsonPrimitive("MaxUsedCount").getAsInt(); float usedPerc = (availCount != 0 ? ((float) activeCount / availCount) * 100 : 0); info.put("AvailableCount", String.format("%d", availCount)); info.put("ActiveCount", String.format("%d (%.0f%%)", activeCount, usedPerc)); info.put("MaxUsedCount", String.format("%d", maxUsedCount)); for (Metric metric : poolMetrics) { metric.setValue(info.get(metric.getKey())); } JsonObject jsonJDBC = jsonObj.getAsJsonObject("step-2").getAsJsonObject("result"); int curSize = jsonJDBC.getAsJsonPrimitive("PreparedStatementCacheCurrentSize").getAsInt(); int hitCount = jsonJDBC.getAsJsonPrimitive("PreparedStatementCacheHitCount").getAsInt(); float hitPerc = (curSize != 0 ? ((float) hitCount / curSize) * 100 : 0); int misUsed = jsonJDBC.getAsJsonPrimitive("PreparedStatementCacheMissCount").getAsInt(); float misPerc = (curSize != 0 ? ((float) misUsed / curSize) * 100 : 0); info.put("PreparedStatementCacheCurrentSize", String.format("%d", curSize)); info.put("PreparedStatementCacheHitCount", String.format("%d (%.0f%%)", hitCount, hitPerc)); info.put("PreparedStatementCacheMissCount", String.format("%d (%.0f%%)", misUsed, misPerc)); for (Metric metric : prepStatementMetrics) { metric.setValue(info.get(metric.getKey())); } // refresh table ((MergeAdapter) getListAdapter()).notifyDataSetChanged(); } @Override public void onFailure(Exception e) { ProgressDialogFragment.dismissDialog(getActivity()); ErrorDialogFragment.showDialog(getActivity(), e.getMessage()); } }); } }